131348729 has 8 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 124330896.

The previous prime is 131348719. The next prime is 131348759. The reversal of 131348729 is 927843131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131348729 - 2⁴ = 131348713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131348692 and 131348701.

It is not an unprimeable number, because it can be changed into a prime (131348719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29519 + ... + 33675.

It is an arithmetic number, because the mean of its divisors is an integer number (17297280).

Almost surely, 2^131348729 is an apocalyptic number.

131348729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

131348729 is a deficient number, since it is larger than the sum of its proper divisors (7029511).

131348729 is a wasteful number, since it uses less digits than its factorization.

131348729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5839.

The product of its digits is 36288, while the sum is 38.

The square root of 131348729 is about 11460.7473142025. The cubic root of 131348729 is about 508.3255722426.

The spelling of 131348729 in words is "one hundred thirty-one million, three hundred forty-eight thousand, seven hundred twenty-nine".